Window



FIG. 1 is a perspective view of a window showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a side elevational view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a rear elevational view on a reduced scale.

The ornamental design for a window, as shown.